Soft lenses and rigidgaspermeable (RGP) lenses are the main types of contact lenses available. Each has specific indications as well as a specific wear and care regimen. The older hard (PMMA) lenses are rarely used today and have risks similar to RGP lenses. There are larger scleral lenses ...
A method for manufacturing of all types of rigid gas-permeable (RGP) contact lenses : scleral, corneoscleral and corneal lenses and preferably-orthokeratologic lenses by new controlled programmed bending technology and prolonged stamping technology using initially softened workpiece profile preferably made...
Gas permeable lenses— also called GP or RGP lenses — are rigid contact lenses that look and feel like PMMA lenses (see below) but are porous and allow oxygen to pass through them. Because they are permeable to oxygen, GP lenses can be fit closer to the eye than PMMA lenses, making t...
Also called GP or RGP lenses, gas permeable contact lenses are rigid contact lenses that maintain their shape on the eye, enabling them to correctastigmatismand other refractive errors. Gas permeable contact lenses are typically smaller in diameter than soft lenses and are made of highly oxygen-pe...
We often are one of the first to receive the latest in Contact Lenses. We have contacts available to target specific eye problems like dry eyes, astigmatism, difficulty reading, and eye diseases like keratoconus. We are focused on giving you the best comfort and vision, not just adequate comf...
Contact lenses (both soft and hard) are made of various types ofpolymers, the latest containing some variant of siliconehydrogel. Previously, hard contact lenses were made of a polymer known asPMMA. They have since been replaced by rigid gas-permeable (RGP) contact lenses. Many contact lenses...
Objective To compare axial length growth and myopia progression among myopic Chinese children wearing single-vision spectacle lenses (SVs),orthokeratology lenses,rigid gas-permeable contact lenses (RGPCLs) or progressive-addition spectacle lenses (PALs) and to evaluate their efficacy in the control of ...